input the default value in an edit box of a GUI as an input from a file?

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Nidhi SRIVASTAVA
Nidhi SRIVASTAVA 2017-7-4
评论： Jan 2017-7-4
Is there a way to input the default value in an edit box of a GUI as an input from a file? I have a file with data (file attached)
I want to input the values row by row into edit boxes of a GUI. ex: EditBox1 as: H V1 V2 RHO Edit2 as:2 500 205. 2.78 Edit3 as:4 600 288. 3.0 I can't figure out how to set default of a edit box as input from a file. Can anybody please help me with it? Thanks.

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回答（1 个）

Jan
Jan 2017-7-4
Import the file in the OpeningFcn of the GUI (if you have created it by GUIDE). Then you can populate the edit boxes with the values, which appear initially.
If you attach the file, does it mean that the import of the file is a part of the problem? If so, please explain this explicitely.
  2 个评论
Nidhi SRIVASTAVA
Nidhi SRIVASTAVA 2017-7-4
Hi Jan. Thank you for the direction. I didn't import the file earlier. But it surely seems to be a nice approach. Now that I imported the file, what should I add to the callback(hObject, eventdata, handles)? I tried: In OpeningFcn: A=importdata(file)
setappdata(0,'evalue1',A.colheaders);
In callback: A.colheaders = getappdata(0,'evalue1'); set(handles.edit1,'String',A.colheaders)
Please suggest me the changes.
Jan
Jan 2017-7-4
Why do you set the ApplicationData of the root object? Which callback do you mean here? I'd suggest:
function OpeningFcn(...)
A = importdata(file);
set(handles.edit1, 'String', A.colheaders);
...
If there is a need to store the data, store them locally:
FigH = ancestor(hObject, 'figure');
setappdata(FigH, 'FileData', A); % Or getappdata

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